If all men were EXACTLY the same the rules would be helpful.
I'm not clear on why he thought you weren't interested...was the email that he didn't receive in response to one he sent, or was there another communication from him that you had not responded to?
I totally agree. You never know. & of course, you dont send a 3rd & a 4th email. But what is 1 extra going to hurt if you arent sure why someone didnt respond to your 1st?